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Svetlanka [38]
3 years ago
8

What's the answer ii

Chemistry
2 answers:
olga2289 [7]3 years ago
5 0
It is filtration... I think.
finlep [7]3 years ago
4 0
He answer to what was is ii

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What is the molarity of 50gram of calcium carbonate is dissolved in 250ML of water​
m_a_m_a [10]

Answer:

Molar Mass of Calcium Carbonate = 100g

given mass = 50g

Number of mole of Calcium Carbonate =50/100 = 0.5 mole

Molarity = mole per litre of volume

Molarity = 0.5 /0.25 = 2mole/litre

Explanation:

hope it helps ......

mark me as brainliest ❤️

7 0
3 years ago
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Question<br> What is the name of the covalent compound with the formula P2N3?
Elina [12.6K]

Answer:

P2N5

Explanation:

you have to plus it 2 times

6 0
2 years ago
what is meant by a calibration curve for a colored substance being studied with a spectrophotometer? How is a calibration curve
BlackZzzverrR [31]

Answer:

The concentration of the analyte is determined by fitting the absorbance or transmittance obtained by spectrophotometric analysis of the unknown solution into the calibration curve.

Explanation:

In a calibration curve, the instrumental response (absorbance or transmittance), is plotted against the concentration of the analyte (the substance to be measured). The analyst is expected to prepare a series of standard solutions of the analyte within a range of solution concentrations close to the expected concentration of analyte in the unknown solution. The method of least squares may be used to determine the best fit of the line, thus, the concentration of the analyte. This method is only used for the determination of the concentration of coloured substances (spectrophotometry).

3 0
3 years ago
What is a condensate?
Iteru [2.4K]

Answer:

A condensate is a liquid formed by condensation.

Explanation:

3 0
3 years ago
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I can't find the answer for number 9/10 pleas help
kondaur [170]
(10)an object  will continue  to travel at a constant speed unless acted by an unbalanced  force  according to newtons second law every force acted on a body has a equal and opposite reaction so the speed and the direction of the object will change.

(9) balanced force (i think so )

hope this is what you needed the 10th one is for understanding you can shorten it after reading and i think what i have written is not wrong :P:P:P;p:P:):):):D=) for the ninth one i am not sure but i think so :P:)=)


8 0
3 years ago
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